package com.xiaohua.xiaohuamall.product.service.impl;


import com.alibaba.fastjson.TypeReference;
import com.xiaohua.common.constant.ProductConstant;
import com.xiaohua.common.to.SkuHasStockVo;
import com.xiaohua.common.to.SkuReductionTo;
import com.xiaohua.common.to.SpuBoundTo;
import com.xiaohua.common.to.es.SkuEsModel;
import com.xiaohua.common.utils.R;
import com.xiaohua.xiaohuamall.product.entity.*;
import com.xiaohua.xiaohuamall.product.feign.CouponFeignService;
import com.xiaohua.xiaohuamall.product.feign.SearchFeignService;
import com.xiaohua.xiaohuamall.product.feign.WareFeignService;
import com.xiaohua.xiaohuamall.product.service.*;
import com.xiaohua.xiaohuamall.product.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xiaohua.common.utils.PageUtils;
import com.xiaohua.common.utils.Query;

import com.xiaohua.xiaohuamall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;
    @Autowired
    SpuImagesService spuImagesService;
    @Autowired
    AttrService attrService;
    @Autowired
    ProductAttrValueService productAttrValueService;
    @Autowired
    SkuInfoService skuInfoService;
    @Autowired
    SkuImagesService skuImagesService;
    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    CouponFeignService couponFeignService;
    @Autowired
    BrandService brandService;
    @Autowired
    CategoryService categoryService;
    @Autowired
    WareFeignService wareFeignService;
    @Autowired
    SearchFeignService searchFeignService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1、保存spu基本信息;pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);
        //2、保存spu的描述图片;pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuinfoDesc(descEntity);
        //3、保存spu的图片集;pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(infoEntity.getId(),images);
        //4、保存spu的规格参数;pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);
        //5、保存spu的积分信息;xiaohuamall_sms->sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
       R r =couponFeignService.saveSpuBounds(spuBoundTo);
       if (r.getCode() != 0){
           log.error("远程保存spu积分信息失败");
       }
        //6、保存当前spu对应的所有sku信息;
        //6.1)、保存sku的基本信息;pms_sku_info
        List<Skus> skus = vo.getSkus();
        if(skus != null && skus.size() > 0){
            skus.forEach(item ->{
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1){
                        defaultImg = image.getImgUrl();
                    }
                }
                /**
                 * private String skuName;
                 * private BigDecimal price;
                 * private String skuTitle;
                 * private String skuSubtitle;
                 */
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(skuInfoEntity);
                Long skuId = skuInfoEntity.getSkuId();
                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity->{
                    //返回true就是需要，FALSE就是去除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //6.2)、sku的图片信息;pms_sku_images
                //TODO 没有图片路径的无需保存
                skuImagesService.saveBatch(imagesEntities);
                //6.3)、sku的销售属性信息;pms_sku_sale_attr_value
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);
                    return attrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);
                //6.4)、sku的优惠、满减等信息;xiaohuamall_sms->sms_sku_ladde\sms_sku_full_reduction\sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal(0)) == 1){
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0){
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }


    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        if (!StringUtils.isEmpty(params.get("key"))){
            wrapper.and(w->{
                w.eq("id",params.get("key")).or().like("spu_name",params.get("key"));
            });
        }
        if (!StringUtils.isEmpty(params.get("status"))){
            wrapper.eq("publish_status",params.get("status"));
        }
        if (!StringUtils.isEmpty(params.get("brandId")) && !"0".equalsIgnoreCase((String) params.get("brandId"))){
            wrapper.eq("brand_id",params.get("brandId"));
        }
        if (!StringUtils.isEmpty(params.get("catelogId")) && !"0".equalsIgnoreCase((String) params.get("catelogId"))){
            wrapper.eq("catalog_id",params.get("catelogId"));
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );
        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {
        //1、查出当前spuid对应的所有sku信息，品牌的名字。
        List<SkuInfoEntity> skuInfoEntities = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skuInfoEntities.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());
        //TODO 4、查询当前sku的所有可以被用来检索的规格属性
        List<ProductAttrValueEntity> baseAttrs = productAttrValueService.baseAttrListforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> attr.getAttrId()).collect(Collectors.toList());
        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);
        HashSet<Long> idSet = new HashSet<>(searchAttrIds);
        List<SkuEsModel.Attrs> attrs = baseAttrs.stream().filter(item->{
           return idSet.contains(item.getAttrId());
        }).map(item->{
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item,attrs1);
            return attrs1;
        }).collect(Collectors.toList());
        //TODO 1、发送远程调用，库存系统是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            R skusHasStock = wareFeignService.getSkusHasStock(skuIdList);
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<>() {

            };
            stockMap = skusHasStock.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        }catch (Exception e){
            log.error("库存服务查询出现异常:原因{}",e);
            e.printStackTrace();
        }

        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skuInfoEntities.stream().map(sku -> {
            //组装需要的数据
            SkuEsModel skuEsModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,skuEsModel);
            skuEsModel.setSkuPrice(sku.getPrice());
            skuEsModel.setBrandImg(sku.getSkuDefaultImg());
            //设置库存信息
            if (finalStockMap == null){
                skuEsModel.setHasStock(true);
            }else {
                skuEsModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }
            //TODO 2、热度评分。0，
            skuEsModel.setHotScore(0L);
            //TODO 3、查询品牌和分类的名字信息
            BrandEntity brandEntity = brandService.getById(skuEsModel.getBrandId());
            skuEsModel.setBrandName(brandEntity.getName());
            skuEsModel.setBrandImg(brandEntity.getLogo());
            CategoryEntity categoryEntity = categoryService.getById(skuEsModel.getCatalogId());
            skuEsModel.setCatalogName(categoryEntity.getName());
            //设置检索属性
            skuEsModel.setAttrs(attrs);
            BeanUtils.copyProperties(sku,skuEsModel);
            return skuEsModel;
        }).collect(Collectors.toList());
        //TODO 5、将数据发送给es进行保存；xiaohuamall-search;
        R r = searchFeignService.productStatusUp(upProducts);
        if (r.getCode() == 0){
            //远程调用成功
            //TODO 6、修改当前的spu的状态
            this.baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            //TODO 7、重复机制，幂等性问题？
        }
    }


}